CN202786355U - Tool for induction hardening of crankshaft - Google Patents
Tool for induction hardening of crankshaft Download PDFInfo
- Publication number
- CN202786355U CN202786355U CN 201220400761 CN201220400761U CN202786355U CN 202786355 U CN202786355 U CN 202786355U CN 201220400761 CN201220400761 CN 201220400761 CN 201220400761 U CN201220400761 U CN 201220400761U CN 202786355 U CN202786355 U CN 202786355U
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- China
- Prior art keywords
- bent axle
- main journal
- crankshaft
- quenching
- locating sleeve
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Abstract
The utility model discloses a tool for induction hardening of a crankshaft, wherein a small head part of the crankshaft is sleeved with a multifunctional positioning sleeve, the positioning sleeve can be used for datum positioning of a crankshaft hardening position as well as positioning of an Ith main journal hardening inductor, a hole is formed in the center of the positioning sleeve and is in clearance fit with a small head of the crankshaft, and the positioning sleeve is sleeved on the small head of the crankshaft when in use. According to the tool, not only is the difficult problem that the heating temperature and the depth of a hardening zone are not uniform when an Ith main journal of the crankshaft implements induction hardening solved, but also the manufacture cost of a crankshaft hardening machine tool is lowered, so that the hardening operation is simpler and more convenient and reliable, therefore, the tool for induction hardening of the crankshaft is quite suitable for a domestic crankshaft induction hardening machine tool.
Description
Technical field
The utility model provides a kind of induction hardened special tooling of bent axle I main journal that is applicable to.
Background technology
For fatigue strength and the journal surface wear resistance that improves bent axle, usually need to carry out the induction quenching processing to neck of bent axle and fillet.Normally used is bent axle half-turn saddle quenching inducer, and the induction heating button rides on the neck of bent axle, when crankshaft rotation, make whole journal surface by magnetic field scanning, thereby whole axle journal top layer gets periodic heat temperature raising.Generally, bent axle uses the quenching inducer of independent scantlings of the structure except thrust shelves axle journal differs greatly with other axle journal owing to shelves are wide, and other main journal can use the quenching inducer of same widths.But when the I main journal of quenching bent axle, because this main journal is different from other main journal structure, namely there is not balance block structure by little head end, " lack piece " so that this main journal end face heating power distribution is excessive, Heating temperature is too high overheated easy hardening break easily, and depth of hardening zone all surpasses technical requirements (seeing Fig. 1).Existing solution can only be that the inductor block of independent design specialized comes heating quenching I main journal, this quenching inducer other main journal that can not quench, also will install positioning mandril additional at the quenching machine headstock simultaneously and withstand the quenching inducer side, inductor block produces skew when preventing from quenching the I main journal.When if quenching machine does not dispose abundant induction hardening transformer installation quenching inducer, then bent axle of every quenching must manually be changed an order I main journal quenching inducer, and not only production efficiency is low, and the producer's labour intensity is also high.
The utility model content
The purpose of this utility model is to provide a kind of bent axle I main journal that can prevent temperature and the inhomogeneous frock of depth of hardening zone to occur at induction quenching, this frock not only can solve the inhomogeneous difficult problem of bent axle I main journal quenching temperature, and greatly improve the production efficiency of bent axle, reduce operator's labour intensity.
Technical solution of the present utility model is such, a kind of bent axle induction quenching frock, the microcephaly position that it is characterized in that bent axle puts a multi-functional locating sleeve, locating sleeve can be used as the origin reference location of bent axle quenching position, also can be used as the location of I main journal quenching inducer, the locating sleeve center is porose, with bent axle microcephaly running fit, is enclosed within during use on the bent axle microcephaly.
This frock material is steel or cast iron materials.
The two ends of described locating sleeve are processed with big or small flange, little end face of flange is located as the crankshaft quench position reference, large flange is equivalent to another counterbalance weight of I main journal, makes the I main journal also have complete shelves wide, plays to increase piece and to the quenching inducer positioning action.
Be processed with circular bosses at the large end face of flange of locating sleeve, the diameter of circular bosses can equal or be slightly smaller than the diameter of main bearing journal, and circular bosses and main journal end contact make the shelves of I main journal wide wide identical with other main journal shelves by the control land length.
The utility model has the advantages that: the one, crankshaft quench position reference location, the 2nd, play quenching inducer heating positioning action, the 3rd, play " increasing piece " effect.Prevent the generation that axle journal end face Heating temperature is too high, quench-hardened case is excessively dark.
Description of drawings
It is such that structure of the present utility model consists of:
Fig. 1 is the utility model bent axle induction quenching tool structure sectional view and bent axle clamping synoptic diagram.
Installation way and the signal of I main journal quench-hardened case that Fig. 2 generally adopts for existing bent axle induction quenching.
Among Fig. 1～figure, lathe clamp (1), locating sleeve (2), quenching inducer (3), bent axle (4), I main journal quench-hardened case (5).
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, the utility model device bag is exactly when crankshaft quench, put a locating sleeve its microcephaly, the locating sleeve two ends are processed with flange, wherein be processed with boss on the large end face of flange, can form complete " the main journal shelves is wide " behind boss and the I main journal end contact, wide consistent with other main journal shelves by the length realization of control boss, thus reach the purpose that can share other main journal quenching inducer.By put this multi-functional locating sleeve the bent axle microcephaly, played three kinds of effects like this: the one, play crankshaft quench position reference positioning action, use I main journal end face contrast locating now more accurate with bent axle microcephaly end face location; The 2nd, play quenching inducer heating positioning action, half-turn saddle inductor block is that button rides over the I main journal when quenching heating, if the end face side does not have position block, inductor block can swing and bias effect quenching quality during crankshaft rotation, after adding multi-functional locating sleeve, the large flange of its end face just plays positioning action; Three is exactly to play " increasing piece " effect, locating sleeve is enclosed within on the I main journal end face, large flange and boss have just quite increased a counterbalance weight at the end face of I main journal, thereby changed the distribution of magnetic line of force, weakened the end face induction heating current density of I main journal, the generation of prevented effectively that axle journal end face Heating temperature is too high, quench-hardened case being crossed the mass defect such as dark.Process locating sleeve (2) with low-carbon steel material, the locating sleeve two ends are processed with big or small flange, the effect of large flange is equivalent to " counterbalance weight " of the I main journal end face side of bent axle (4), large end face of flange also processes circular bosses, circular bosses is equivalent to a bit of main journal, and its diameter equals or primary spindle neck diameter slightly.The hole of locating sleeve (2) and bent axle (4) microcephaly's running fit, locating sleeve (2) is enclosed within the bent axle microcephaly makes boss and I main journal end contact, the counterbalance weight of so large flange and main journal opposite side forms complete " the main journal shelves is wide ", the wide large I of shelves is just controlled by the processing boss, guarantee wide consistent with other main journal shelves so that main journal quenching inducer (3) is general.During bent axle dress (4) folder quenching operation, first put locating sleeve (2) bent axle (4) microcephaly, make the origin reference location of quenching position with the little end face of flange of locating sleeve (2), the top bent axle stub end centre hole that holds out against of lathe, the boss of guaranteeing locating sleeve is close to I main journal end face and is contacted, then drive lathe clamp 1 and clamp the bent axle microcephaly, just can begin induction quenching production after the bent axle clamping is complete.
Claims (4)
1. bent axle induction quenching frock, it is characterized in that: the microcephaly position of bent axle (4) puts a multi-functional locating sleeve (2), locating sleeve (2) can be used as the origin reference location of bent axle quenching position, also can be used as the location of I main journal quenching inducer (3), locating sleeve (2) center is porose, with bent axle (4) microcephaly's running fit, be enclosed within during use on bent axle (4) microcephaly.
2. according to bent axle induction quenching frock claimed in claim 1, it is characterized in that: this frock material is steel or cast iron materials.
3. according to bent axle induction quenching frock claimed in claim 1, it is characterized in that: the two ends of described locating sleeve (2) are processed with big or small flange, little end face of flange is located as the crankshaft quench position reference, large flange is equivalent to another counterbalance weight of I main journal, make the I main journal also have complete shelves wide, play and increase piece and to quenching inducer (3) positioning action.
4. according to bent axle induction quenching frock claimed in claim 3, it is characterized in that: be processed with circular bosses at the large end face of flange of locating sleeve (2), the diameter of circular bosses can equal or be slightly smaller than the diameter of main bearing journal, circular bosses and main journal end contact make the shelves of I main journal wide wide identical with other main journal shelves by the control land length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400761 CN202786355U (en) | 2012-08-14 | 2012-08-14 | Tool for induction hardening of crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220400761 CN202786355U (en) | 2012-08-14 | 2012-08-14 | Tool for induction hardening of crankshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202786355U true CN202786355U (en) | 2013-03-13 |
Family
ID=47813658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220400761 Expired - Fee Related CN202786355U (en) | 2012-08-14 | 2012-08-14 | Tool for induction hardening of crankshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202786355U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046766A (en) * | 2013-03-14 | 2014-09-17 | 广西玉柴机器股份有限公司 | Six-cylinder diesel engine crankshaft normalizing furnace charging method |
| CN106636565A (en) * | 2016-11-15 | 2017-05-10 | 武汉重工铸锻有限责任公司 | Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine |
| CN108220534A (en) * | 2016-12-14 | 2018-06-29 | 天津建筑机械厂 | Supporting wheel shaft medium frequency induction hardening protective device |
| CN115505704A (en) * | 2022-09-14 | 2022-12-23 | 武汉船用机械有限责任公司 | Balance block and quenching method thereof |
-
2012
- 2012-08-14 CN CN 201220400761 patent/CN202786355U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104046766A (en) * | 2013-03-14 | 2014-09-17 | 广西玉柴机器股份有限公司 | Six-cylinder diesel engine crankshaft normalizing furnace charging method |
| CN104046766B (en) * | 2013-03-14 | 2016-04-13 | 广西玉柴机器股份有限公司 | Six cylinder machine crankshaft normalizing shove charge methods |
| CN106636565A (en) * | 2016-11-15 | 2017-05-10 | 武汉重工铸锻有限责任公司 | Tool and method for acquiring medium frequency quenching technological parameters of crankshaft of medium-high speed diesel engine |
| CN108220534A (en) * | 2016-12-14 | 2018-06-29 | 天津建筑机械厂 | Supporting wheel shaft medium frequency induction hardening protective device |
| CN115505704A (en) * | 2022-09-14 | 2022-12-23 | 武汉船用机械有限责任公司 | Balance block and quenching method thereof |
| CN115505704B (en) * | 2022-09-14 | 2024-01-23 | 武汉船用机械有限责任公司 | Balance weight and quenching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170814 |